Question

prove-sinA/1+cos A+1+cos A/sinA=2 cosecA​

Answer 1

Step-by-step explanation:

sinA/1+cosA + 1+cosA/sinA

sin²A + (1+cosA)² / (1+cosA)sinA

sin²A+1+cos²A+2cosA/(1+cosA)sinA

2+2cosA / (1+cosA)sinA

2(1+cosA)/(1+cosA)sinA

2/sinA = 2cosecA